Pneumatic knee-pad.



PATENTED JUNE 23, 1908.

P. P. GIBBS. PNEUMATIC KNEE PAD.

APPLIOATION FILED SEPT. 27, 1907.

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PAALGO P. GIBBS, OF GORDON, TEXAS.

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Application filed Specification of Letters Patent.

September 27, 1907. Serial No. 394,879.

Patented June '23, 1908.

To all whom it may concern:

Be it known that I, PAALGO P. GIBBS, a citizen of the United States, residing at Gordon, in the county of Palo Pinto and State of Texas, have invented a new and useful Pneumatic Knee-Pad, of which the following is a specification. I

The invention relates to a pneumatic knee ad for cotton pickers.

The object of the present invention is to improve the construction of knee pads, and to provide a simple, inexpensive and efficient pneumatic knee pad, adapted to be readily adjusted to the leg of the wearer, and capable of affording a soft cushion for the knee and of enabling the leg of the wearer to bend in kneeling without straining or tearing the trousers.

With these and other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing an of the advantages of the invention.

n the drawing :-Figure 1 is a side elevation of a pneumatic knee pad, constructed in accordance with this invention and shown applied to a leg. Fig. 2 is a vertical sectional view of the knee pad. Fig. 3 is a reverse plan view.

Like numerals of reference designate corresponding parts in all the figures of the drawing.

The pneumatic knee pad is an inflatable bag 1 of rubber, able material, arranged comti osed of a stifi front 3 and a flexible back 4. he casing is rectangular, the front and back being stitched together at the top and side edges, while the lower edges are detachably secured together by lacing. a cord 5, or other suitable flexible connection through perforations or eyelets. This will permit the inflatable bag to be removed when. desired. The inflatable bag is provided with an exteriorly arranged valve 6 of the ordinary construction, located at the bottom of the pad, as clearly illustrated in Figs. 2 and 3 of the drawing, so as not to catch on limbs or leaves. The stiff front of the casing is provided with or other suitwithm a casing 2 the safety pins.

provided with a central projecting cup shaped portion 7 of substantially concavoconvex form, designed to conform to the configuration of the knee of the wearer and adapted to form a resilient su port for the knee, when the wearer is knee ing.

The pad is provided at the upper corners with upwardly elastic hanger straps 8, having upper terminal loops 9, receivmg safety pins 10, which are disposed transversely of the loops and permit the latter to slide on them to afford greater freedom in adjusting the pad to the trousers leg, and to also enable the pad to have a limited lateral movement without tearing the trousers. The straps 8, however, may be constructed of non-elastic material, if desired.

The pad is provided at the bottom with a transversely disposed attaching band 11, designed to be passed around the leg1 of the wearer below the knee and adapte to have its free end secured to the opposite upper corner of the pad by means of a buckle 12', or other suitable fasteningdevice. he strap or band, which is adapted to prevent the ad from floppingl up, need not be buck ed tight to keep t e pad in place, and will not cram the wearer. The ad is laced on the ee, as illustrated in ig. 1, and the safety ins are secured to the trousers leg 13 a ove the knee, the transversel disposed strap or band 11 being asse around the leg below the knee. In

endin the leg the elastic straps and safety pins wi yield and move sufficiently to revent the trousers from bein torn, or ot erwise injured. The space hangers are adapted to support the pad in pro er position with relation to t e knee. here is nothing to prevent the free circulation of blood, and the le willbend easily at the knee, and the a will be found cool and comfortable. ne of the essential features of the invention is to prevent any binding ofthe leg, and this is avoided by fastening the pad to the apparel above the knee with The valve 6 should be placed on the inner side of the leg so as not to catch on limbs.

Havin thus fully described my invention, What I c aim as new and desire to secure by Letters Patent, is

A pneumatic knee pad including a casing composed of a flexible back, and a stiff front of concavo-convex form, said back and said front bein rigidly secured together at three sides or e ges, a lacing cord connecting the said parts of the remaming side or edge, an inflatable bag arranged within the space between the front and back, a transversely disposed strap or band connected with the caslng and arranged to encircle the leg of the wearer below the knee, and hanger straps connected with the top of the casing at opposite sides thereof and having means for permitting a lateral movement of the said casing.

In testimon that I claim the foregoing as my own, I ave hereto affixed my slgnature 1n the presence of two witnesses.

PAALGO P. GIBBS.

Witnesses:

RFE. SoLvARD, L. GARNER. 

